IC64171: BACKUP OF LARGE FILES TO A DISK STORAGE POOL WITH CACHING ENABLED MAY FAIL WITH CLIENT ERROR MESSAGE ANS8010E

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APAR status

  • Closed as program error.

Error description

  • APAR IC62304 describes a problem where backups to a disk storage
    pool with caching enabled can fail if the storage pool is full
    of cached data.
    Even if the fix for APAR IC62304 has been applied, there is a
    small window where backups of (very) large files to such a disk
    storage pool can still fail with the same symptoms.
    .
    .
    Customer/L2 Diagnostics:
    The Tivoli Storage Manager client shows for example
    (dsmsched.log):
    [...]
    10/28/2009 09:53:19 ANS1228E Sending of object
    '\\test-machine\c$\large_dir\file1.trn' failed
    10/28/2009 09:53:19 ANS8010E An attempt to backup or archive a
    file has exceed the maximum number of retries.
    10/28/2009 09:53:19 ANS1228E Sending of object
    '\\test-machine\c$\large_dir\file2.trn' failed
    10/28/2009 09:53:19 ANS8010E An attempt to backup or archive a
    file has exceed the maximum number of retries.
    10/28/2009 09:54:30 ANS1802E Incremental backup of
    '\\test-machine\c$' finished with 2 failure
    .
    Usually there is no message seen in the ACTLOG at this time, but
    the above message may be accompanied by "ANS1329S - server out
    of storage space" (but not necessarily).
    .
    A Tivoli Storage Manager server trace with traceflag SESSION
    shows:
    [...]
    09:53:19.903 [42][smnode.c][24881][CreateBitfile]:Evaluating
    with pctUtil 96.840013, pctMigr 0.103695, spaceRemaining
    9940459520.000000 and spaceNeeded 24739617 (totNeeded
    10632660199).
    09:53:19.903 [49][smutil.c][1615][smGetSessMountCount]:Session
    11308 for node TEST-MACHINE has 0 mount points allocated.
    09:53:19.903 [49][smnode.c][26923][ReconcileMPCounts]:Beginning
    reconciliation for TEST-MACHINE(11308) with sessMpCount 0,and
    mpReqForDest 0.
    09:53:19.903 [49][smnode.c][26942][ReconcileMPCounts]:IncrBy 0,
    DecrBy 0 after sessMpCount vs mpReqForDest for
    TEST-MACHINE(11308).
    09:53:19.903 [49][smutil.c][1652][smGetNodeMountCount]:Node
    TEST-MACHINE has no mount points allocated.
    09:53:19.903 [49][smnode.c][26959][ReconcileMPCounts]:Node
    TEST-MACHINE(11308) has 0 mount points, and MAXNUMMP is 2.
    09:53:19.903 [49][smutil.c][1615][smGetSessMountCount]:Session
    11308 for node TEST-MACHINE has 0 mount points allocated.
    09:53:19.903 [49][smnode.c][26997][ReconcileMPCounts]:Finished
    with reconciliation for TEST-MACHINE(11308); sessMPCount 0.
    09:53:19.903
    [49][smnode.c][24968][CreateBitfile]:(11308)bfCreate returned 79
    when termReason is (0)
    09:53:19.903 [49][smtrans.c][3754][SmAbsorbData]:Checking pushed
    verb BackInsNormEnhanced with len 454 and size 4.
    .
    .
    Tivoli Storage Manager Versions Affected:
    Tivoli Storage Manager servers 6.1 on all platforms
    .
    .
    Initial Impact:
    Medium
    .
    .
    Additional Keywords:
    zz61 IC62304 cache caching migrated migration
    

Local fix

  • Empty the affected storage pool manually using the following
    command against all volumes in the pool:
    MOVE DATA <volume_name>
    and set "Cache migrated data" to NO to avoid the storage pool to
    fill up and backups to fail again.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager server users.     *
    ****************************************************************
    * PROBLEM DESCRIPTION: See error description.                  *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be         *
    *                 fixed in level 6.1.3. Note that this is      *
    *                 subject to change at the discretion          *
    *                 of IBM.                                      *
    ****************************************************************
    *
    

Problem conclusion

  • This problem was fixed.
    Affected platforms:  AIX, HP-UX, Sun Solaris, Linux,
    and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC64171

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    61W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-10-28

  • Closed date

    2009-12-04

  • Last modified date

    2009-12-04

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61L PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP



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Document information


More support for:

Tivoli Storage Manager

Software version:

61W

Reference #:

IC64171

Modified date:

2009-12-04

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